Automobile-wheel-rim-straightening device



P. R. LA BRANT AND A. C. NORDHAUGEN.

AUTOMOBILE WHEEL RIM STRAIGHTENING DEVICE.

APPLICATION FILED FEB. 2, I921- Patented DOG-13, 1921.

. ATTORNEY.

' the arrows,

UNITED STATES PATENT QFFICE.

PAUL 3. LA BRANT AND ADOLPH G. NORDHAUGEN, OF STANLEY,-NORTH DAKOTA.

AUTOIvIOBILE-WHEEL-RIM-STRAIGHTENING nnvrcn.

ioness.

Application filed. February T 0 all whom it may concern:

Be'it lrnown that we, PAUL LA BRANT and A's Jeri; C. Nonnrnioonn, citizens oi the United States, residing at Stanley, in the ntening Devices, of which the fola specification, reference being accompanying rings.

ntion rel to i-.. movements in 5 s and has for particular obj thereof the pro *ision of a device for straightening the rims of automobile wheels which are utilized for holding tires of the clencher type.

An important object the invention is to provide device of this character which at one operation will restore a bent rim to its proper sh A. further oo ect of the invention is to provide a device of this character comprising a tool embodying a pair of peculiarly sheped jaws adapted when forced together to form therebetween a rim together with means for forcing the jaws into engagement.

Other objects and advantages of our invention will become apparent throughout the course of the following description.

In the accompanying drawings, wherein for the purpose of illustration we have shown pref-erred embodiments or" our invention whereby the above objects are attained:

Figure 1 is aside elevation partly in section showing OlllitOOl applied to straightening arim, the dotted lines indicating the position oi the tool and rim flange at the time of initial engagement,

Fig. 2 is a section on the line 2-2 of Fig. 5,

Fi 3 is a section on the line 2 2 of Fi L, I, t) o and looking in the opposlte direction i'rom Fig. 1 is fragmentary plan view illus- Specification of Letters Do.

Patented Dec; 13, 1921.

Serial No. 441,394.

at the edge a tongue 13 which is arcuatel curved to conform to the curvature of the rim with which the tool is to be employed. This tongue conforms to the proper curvature of the undercut or bead-receiving portion of the rim flange 14. The opposite face 15 the groove 12 from the tongue 13 inclines toward the base of the groove and toward the base of the tongue 13 for purpose presently to appear. Slidably mounted upon the shank 1O a second w 16 provided in the face thereof next a .cent the jaw ll. with an arcuate groove 1! corresponding to the proper curvatur of and edapted to receive the outer face of the bend of the flange of the rim.

It will be seen when the are placed in position upon a f nge which is bent with the inner edge of the flange engaging in the l2 and the outer curve thereof engaged by the groove 17, the deformation of the rim will cause the rim to engage either against the inclined inner face 13 of the tongue or the inclined wall 15 or the groove w posed to this face. pressure is now ap vd to the jaw 16 to cause the same to move toward the jaw 11, the inner edge of the flange wil be forced to move down the inclined wall with which it is engaged until it arrives at its proper position in the base oi? the groove.

Any suitable means may he provided for shifting the jaw 16 longitudinally upon the shank 10 which will give suilicient pressure to overcome the r sistan e afforded by the rim, it being oi course understood that this resistance will vary in dill'erent types of rims. In the present instance we have illustrated two forms of operating mechanism whereby the shifting of the j aw 16 may be obtained. In Fig. l, a pivot pin 19 is mounted in the shank 10 and forms a pivot for an eccentric dislr 20 having integrally formed therewith an operating handle 20- by means of which the disk ay be rotated about the pivot 19. The shank 10 is likewise continued to form a handle 21 and it will be obvious that by relatively shittin these handles the jaw 16 may be forced toward the jaw 11 as desired- In the form shown in 5, e longitudinally threaded bearing 22 4 formed upon the shank 10 and has inountel therein an externally screw-threaded shaft 23, the inner e. l

handle 25 by means of which the sha-ft ma-y berotated to shift the jaw IG'as desired.

' It will be obvious that the operating means above disclosed may be greatly varied and it will likewise be obvious that many other. changes of a: similar character may be resorted to without in any manner departing from the spirit of our invention, and we accordingly do not limit ourselves to the speci-fie structure hereinbefore set forth except as hereinafter claimed.

\Vlia-t we claim is-z Ina portable tool for straightening the flanges of rims of automobile wheels, a shank; a stationary jaw carried by the shank and having a groove form-ed therein and provided at one' edge of the jaw with a tongue eorrespondingto the proper shaping of the bead receiving under surface of the flange, said tongue and groove being longi- V tudinally arcuately curved to conform to V the; curvature of the rim; the walliof the groove opposing saidtongue being inclined toward theibaseof said tongue, a shiftable jaw slidably mounted upon the'base of said shank and. grooved to engage the outer face of the flange to force the flange into .the

groove on" thestationary-jaw and into engagement with said tongue to be formed the latter, and means for shifting said last named jaw to force the'flange off the rlm lnto the groove, said tool being adapted to straighten circumferential bends and lat PAUL R. LA BRANT. ADOLPH o. NORDHAUGEN. 

